"I think if I wouldn't let my mom do this with all of us and my family—I think if I would of denied the women of my life the planning of the wedding they would probably kill me," she laughed. "I have all the help in the world in a way!"

As for the day itself, Gaga says she's not doing anything over-the-top or extraordinary (which seems out of character for the singer, no?). Rather, she wants it to be more of a real "family-style" wedding. "We are not planning anything that is worth writing about," she joked.

Speaking of her family, the songstress also opened up about her moving Oscars performance, which was the first time both her grandmother and her aunt learned about the sexual abuse she faced in the past.

"There was a lot of tears and a lot of shock. And a lot of love and understanding and pride," she told Seacrest. "I have to tell you, I just felt my grandmother was so proud of me. She said, 'My darling granddaughter, Ive never been more proud of you than I am today.' And it was years and years of rage that I had for not being treated like a professional in the music industry in that instance. Being violated."

She continued, "When that happens to you, for me, as someone who used herself as an educated woman that has worked really hard...to not be treated as a professional and to be treated as an object, it destroyed my sense of self-worth."

As for the song itself, "Till It Happens to You," Gaga says she hopes it will helpvictims of abuse realize they are not alone.

"People who go through any traumatic experience, with so much pain, they can't even verbalize how they are feeling. I'm sure if you asked any of your friends who's loved ones are sick with cancer or someone in the family died unexpectedly, it's almost like people are silent. And with this song, I feel it so important...that people knew they weren't alone and feeling alienating by their pain."